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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: QCISD(T)=FULL/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD(T)=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-835.788286
Energy at 298.15K 
HF Energy-835.260696
Nuclear repulsion energy140.330470
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD(T)=FULL/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3072 3072        
2 A 2692 2692        
3 A 1433 1433        
4 A 1193 1193        
5 A 894 894        
6 A 631 631        
7 A 288 288        
8 A 212 212        
9 B 3135 3135        
10 B 2691 2691        
11 B 1239 1239        
12 B 993 993        
13 B 758 758        
14 B 701 701        
15 B 229 229        

Unscaled Zero Point Vibrational Energy (zpe) 10080.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10080.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/daug-cc-pVDZ
ABC
0.86276 0.10389 0.09705

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.794
S2 0.000 1.557 -0.183
S3 0.000 -1.557 -0.183
H4 0.892 -0.053 1.437
H5 -0.892 0.053 1.437
H6 1.113 1.268 -0.899
H7 -1.113 -1.268 -0.899

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83781.83781.10111.10112.39052.3905
S21.83783.11302.45202.38341.35483.1191
S31.83783.11302.38342.45203.11911.3548
H41.10112.45202.38341.78782.69343.3100
H51.10112.38342.45201.78783.31002.6934
H62.39051.35483.11912.69343.31003.3738
H72.39053.11911.35483.31002.69343.3738

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.782 C1 S3 H7 95.782
S2 C1 S3 115.765 S2 C1 H4 110.574
S2 C1 H5 105.632 S3 C1 H4 105.632
S3 C1 H5 110.574 H4 C1 H5 108.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability